@article{EJDE_2001__2001__a74,
     author = {Farkas,  Gyula and Simon,  Peter L.},
     title = {Stability properties of positive solutions to partial differential equations with delay},
     journal = {Electronic journal of differential equations},
     year = {2001},
     volume = {2001},
     zbl = {0993.35086},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a74/}
}